In a survey of 103 sylvatic animals captured from Rio da Prata a rural area situated near the city of Rio de Janeiro, Histoplasma capsulatum was isolated from liver and spleen of one rat Rattus rattus and two marsupials Metachirus opossum, commonly known as cuíca. The infected animals did not show any clinical symptoms or histopathological alterations. The fungus has not preiously been reported in the marsupial's specie.
